tropo said:IMO doing 50 reps is not a good way to train for the OP. It doesn't make any sense. It would lead to serious overtraining in heavy individuals that can only do 1 - 5 reps at bodyweight and probably lead to elbow and shoulder injuries too.
If a person could manage at least 10 reps on their first set, then perhaps it would be ok.
Would you do 50 reps on a bench press weight that allowed only 5 reps on your first set? You'd probably end up doing 15 to 20 very heavy sets to complete your 50 reps if you did.
As a heavy guy, I agree with this logic. If you're not good at pull-ups, trying to do 50 reps with your bodyweight is suicidal in terms of making progress, because it's way too much volume and intensity.
I've found that doing three sets to failure twice a week works pretty well. At 250 lbs, I went from a 3-rep max to an 8-rep max this way in three months. I also do band-assisted pull-ups for higher reps when I feel like I can handle the extra volume.
Pull-downs seem to be worthless unless you're doing them for super high reps with a very light weight for active recovery. Also, adding weight before you're ready can lead to major elbow pain, which I've experienced.